eyrie
noun (especially British English)(North American English usually aerie)
a nest that is built high up among rocks by a bird of prey (= a bird that kills other creatures for food) such as an eagle （在岩石高处筑的）猛禽巢，鹰巢 a room or building in a high place, especially one that is difficult to reach and from which somebody can see what is happening below （尤指难以接近的）高处的房屋
Word Originlate 15th cent.: from medieval Latin aeria, aerea, eyria, probably from Old French aire, from Latin area ‘level piece of ground’, in late Latin, ‘nest of a bird of prey’.